Mike “The Situation” Sorrentino, muscling his way up to becoming a multimillionaire, knows what it’s like to hit hard times. When the housing bubble burst in 2007, the Staten Island native lost his job, his house and his car. “Things were really bad, so I said, ‘Let me try what I always wanted to do,’ ” he told Men’s Fitness’ new edition, out on Monday. “I was afraid if I followed my dream, someone would say ‘no.’ But I found the courage, and here I am today.”